Ok, just kidding, but you have to check this article out.
The average adult penis, according to the Kinsey Institute, measures just under six inches when erect. Most men — about eighty-seven percent — are between five and seven inches. Dr. Alfred Kinsey found that the largest reported penis was a bit more than nine inches erect.
Jonah Falcon’s penis is 9.5 inches flaccid, 13.5 inches erect.